声门下喉狭窄的治疗仍然是一个难题,内窥镜下的一些治疗方法只对少数患者有用,严重声门下狭窄目前广为应用的是狭窄节段切除或用骨及软骨移植加宽狭窄节段。声门下环状软骨节段切除有损伤喉返神经或环杓关节之虞,因此多用移植骨或软骨使环状软骨扩张的方法。Looper于1938年首先使用舌骨移植到声门下,此后有人用游离及带蒂的舌骨修复声门下狭窄,然而上述方法不适合声门下后面的及环状声门下狭窄。1956Rethi将环状软骨前、后垂直切开加喉模扩张治疗喉狭窄,Cotton等用上述方法加上喉前、后方移植软骨治疗儿童 Subglottic stenosis treatment is still a problem, some of the endoscopic treatment is only useful in a small number of patients, severe subglottic stenosis is currently widely used is the narrow segment resection or with bone and cartilage transplantation to widen the narrow segment . Subglottic annular section excision can damage the recurrent laryngeal nerve or the cricoid ring joints, so the use of graft bone or cartilage to expand the annular cartilage method. Looper was first used in 1938 to transfer the hyoid bone to the supraglottic space. Later, someone used the free and pedicled hyoid bone to repair the subglottic stenosis. However, the above method is not suitable for subglottic and subglottic stenosis. 1956Rethi the annular cartilage before and after the vertical cut plus laryngeal pharynx expansion of the treatment of laryngeal stenosis, Cotton, etc. with the above method plus the anterior and posterior laryngeal cartilage treatment of children